CN209054794U - A kind of more well connection closed circulation stratum cold-heat exchange systems - Google Patents
A kind of more well connection closed circulation stratum cold-heat exchange systems Download PDFInfo
- Publication number
- CN209054794U CN209054794U CN201821601676.6U CN201821601676U CN209054794U CN 209054794 U CN209054794 U CN 209054794U CN 201821601676 U CN201821601676 U CN 201821601676U CN 209054794 U CN209054794 U CN 209054794U
- Authority
- CN
- China
- Prior art keywords
- flow line
- heat exchange
- main
- cold
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The utility model discloses a kind of more wells to be connected to closed circulation stratum cold-heat exchange system, belongs to heat-exchange system field.A kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange system, including using end, heat exchanger and cold cycling pipe network, it is exchanged heat using end by heat exchanger and cold cycling pipe network, cold cycling pipe network includes circulating pump system, main line, first flow line, second flow line and main borehole, circulating pump system is connect by main line with the input end of the first flow line and the second flow line, first flow line, opening and closing device is equipped between second flow line and main line, the outlet end of first flow line and the second flow line is being connect at the different depth position of ground with main borehole respectively, the circulating fluid of main borehole outlet end enters in circulating pump system after heat exchanger exchanges heat.The system of the utility model is able to carry out cooling supply and heating, vdiverse in function, and the system good effect of heat exchange.
Description
Technical field
The utility model relates to heat-exchange system fields, are connected to closed circulation stratum more specifically to a kind of more wells
Cold-heat exchange system.
Background technique
It is also increasing to the consumption of the energy with the continuous improvement of national economy, and traditional energy often utilizes not
Sufficiently and bring pollution is also increasingly severe, such as the cinder that generates of coal burning and flue gas etc. will cause environmental pollution, because
This studies and exploits the important goal that new energy has become sustainable development to reduce environmental pollution.In new energy
In, the geothermal energy of earth interior is also exploited and is utilized by people more and more due to having the characteristics that reserves are big, pollution-free.
Applicant is once conducive to apply for patent, number of patent application CN201320219708, authorization with regard to geothermal energy utilization
The day for announcing is on September 25th, 2013, utility model title are as follows: deep stratum closed circulation heat-exchange system in a kind of utilization.The Shen
Please case be related to deep stratum closed circulation heat-exchange system in a kind of utilization, including thermal energy using end, heat exchanger, circulating pump, wellbore,
Wellhead assembly, well cementing casing pipe and suspension sleeve, the borehole depth are 1000-3500m, and well cementing casing pipe is installed in the wellbore, Gu
Casing is metal material, and oil-well cement is filled between the borehole wall and fixed sleeving；The suspension sleeve is put into well cementing casing pipe, and
By wellhead assembly suspension, fix；Water from annular space injection well, from top to bottom, is cemented the well with surrounding and is covered by the circulating pump
Tube heat exchange close to after shaft bottom, then returns to ground out of suspension sleeve, then heat exchange is used end to thermal energy by heat exchanger.
This application provides the heat source of reproducible, stable, extremely low operating cost, does not destroy, does not pollute intact underground water.But
It is that the system of this application can be only used for heating, and have a single function, does not make full use of geothermal energy.In addition, in this application,
The Cold Water Exposure of the hot water downlink of uplink Shi Huiyu without heat exchange from suspension sleeve after heat exchange, can send out in this contact process
Heat exchange, the hot water temperature after causing heat exchange reduce, and intensity of heat exchange is easily decayed, and the heat exchange of whole system can be made to imitate
Rate reduces, also, the wellbore in this application is provided only with vertical section, and the cold water of downlink is merely able to carry out by vertical section and stratum
Heat exchange, the effective area and small volume of cold water and stratum heat exchange, system heat exchanger effectiveness is low, and tends not to reach pre-
The effect of phase, heat transfer effect are poor.
Summary of the invention
1. utility model technical problems to be solved
For heat-exchange system above shortcomings in the prior art, the utility model provides a kind of more well connection envelopes
Closed loop stratum cold-heat exchange system, which is able to carry out cooling supply and heating, vdiverse in function, takes full advantage of ground
Thermal energy, heating cooling supply does not consume energy, environmentally protective, and the cold-heat exchange system good effect of heat exchange, and heat exchange efficiency is high, practical.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model are as follows:
A kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange systems, including use end, heat exchanger and
Cold cycling pipe network, the use end are exchanged heat by heat exchanger and cold cycling pipe network, the cold cycling pipe network
Including circulating pump system, main line, the first flow line, the second flow line and main borehole, the circulating pump system
It is connect by main line with the input end of the first flow line and the second flow line, circulation fluid is transported to first
In flow line or the second flow line, it is all provided between first flow line, the second flow line and main line
There is an opening and closing device, the outlet end of first flow line and the second flow line is respectively apart from ground different depth position
Place is connect with main borehole, and the circulating fluid of the main borehole outlet end enters in circulating pump system after heat exchanger exchanges heat,
Pass through main borehole from the circulation fluid being transported in main line in the first flow line or the second flow line to be exported.
Further, the circulating pump system includes first circulation pump and second circulation pump, the first circulation
Pump and second circulation pump are arranged in parallel, and the outlet end of the first circulation pump and second circulation pump connects with main line
It connects.
Further, first flow line include first level pipeline and with first level piping connection
One vertical duct, first vertical duct are connect with main line, and the first level pipeline is connect with main borehole.
Further, second flow line include the second horizontal pipeline and connect with the second horizontal pipeline
Two vertical ducts, second vertical duct are connect with main line, and second horizontal pipeline is connect with main borehole.
Further, well head is additionally provided between the main line and the first flow line, the second flow line
Device, to be fixed and seal.
Further, at the connecting pin 2000m located underground of first flow line and main borehole.
Further, at the connecting pin 300m located underground of second flow line and main borehole.
3. beneficial effect
It is had the following beneficial effects: compared with existing well-known technique using technical solution provided by the utility model
(1) a kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange system, which sets
Have the first flow line and the second flow line, be not only able to heat, and can cooling supply, heating cooling supply do not consume energy, function is more
Sample takes full advantage of geothermal energy, environmentally protective, also, first flow line of cold-heat exchange system and the second flow line are equal
It is connect with main borehole, the circulation fluid in the first flow line and the second flow line passes through main borehole and exported, after heat exchange
Circulation fluid and circulation fluid without heat exchange not will do it contact heat-exchanging, intensity of heat exchange is high, good effect of heat exchange, whole system
Heat exchanger effectiveness is higher, practical.
(2) a kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange system, the cold-heat exchange system
First flow line includes first level pipeline and the first vertical duct with first level piping connection, the second flow line packet
The second vertical duct for including the second horizontal pipeline and connecting with the second horizontal pipeline, the first flow line and the second flow line are not
But can exchange heat in vertical section and stratum, additionally it is possible to sufficiently exchanged heat in horizontal segment with stratum, the first flow line and
The effective area and volume that second flow line is contacted with stratum are big, and system heat exchanger effectiveness is high, and sufficiently, heat transfer effect is non-for heat exchange
Chang Hao.
(3) a kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange system, the cold-heat exchange system
At the 2000m located underground of the connecting pin of first flow line and main borehole, which enables to reach 60 using the temperature at end
DEG C or more, heating demands can be met well.
(4) a kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange system, the cold-heat exchange system
At the 300m located underground of the connecting pin of second flow line and main borehole, which enables to maintain 20 using the temperature at end
DEG C hereinafter, heating demands can be met well.
Detailed description of the invention
Fig. 1 is that a kind of more wells of the utility model are connected to the overall structure signal of closed circulation stratum cold-heat exchange system
Figure；
Fig. 2 is that a kind of more wells of the utility model are connected to work of the closed circulation stratum cold-heat exchange system when being heated
Make schematic illustration；
Fig. 3 is a kind of more well connection closed circulation stratum cold-heat exchange systems of the utility model when carrying out cooling supply
Operation principle schematic diagram.
Label declaration in schematic diagram:
1, main borehole；2, the first flow line；21, first level pipeline；22, the first vertical duct；3, the second flow duct
Road；31, the second horizontal pipeline；32, the second vertical duct；4, main line；5, first circulation pumps；6, second circulation pumps；7,
Use end；8, heat exchanger；9, wellhead assembly.
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
In conjunction with shown in Fig. 1 to Fig. 3, a kind of more wells of the present embodiment are connected to closed circulation stratum cold-heat exchange system, including
Using end 7, heat exchanger 8 and cold cycling pipe network, exchanged heat using end 7 by heat exchanger 8 and cold cycling pipe network, wherein
Cold cycling pipe network includes circulating pump system, main line 4, the first flow line 2, the second flow line 3 and main borehole 1,
Circulating pump system is connect by main line 4 with the input end of the first flow line 2 and the second flow line 3, will follow
Ring liquid (circulation fluid in the present embodiment can be the liquid such as water) is transported in the first flow line 2 or the second flow line 3, first
It is equipped with opening and closing device between flow line 2, the second flow line 3 and main line 4, meanwhile, the first flow line 2 and
The outlet end of two flow lines 3 is being connect at the different depth position of ground with main borehole 1 respectively, 1 outlet end of main borehole
Circulating fluid through heat exchanger 8 heat exchange after enter in circulating pump system, the first flow line is transported to from main line 4
2 or the second circulation fluid in flow line 3 pass through main borehole 1 and exported.1 bottom of main borehole of the present embodiment is closed
, the circulation fluid in main borehole 1 is not in contact with the water source etc. in stratum.Circulating pump system makes the circulation fluid of heat or cold follows
Ring liquid enters in the second flow line 3 or the first flow line 2, exchanges heat with stratum, the circulation fluid after heat exchange passes through master
Wellbore 1 exports, and the circulation fluid of output re-enters into circulating pump system after then flowing through heat exchanger 8, uses the water flow at end 7
It is heated or is cooled down by heat exchanger 8.Preferably, above-mentioned opening and closing device is valve, and valve is arranged in the first flow line 2
With the junction of the junction of main line 4, the second flow line 3 and main line 4, can be controlled by the opening and closing of valve
The flowing of circulation fluid processed.
Specifically, as a preferred embodiment, the circulating pump system for being originally embodiment includes that first circulation pump 5 and second follows
Ring pump 6, first circulation pump 5 and second circulation pump 6 are arranged in parallel, and the outlet end of first circulation pump 5 and second circulation pump 6 with
Main line 4 connects, and does not interfere with each other between first circulation pump 5 and second circulation pump 6, first circulation pump 5 and second circulation pump 6
It is each responsible for circulating for circulation fluid in the first flow line 2 and the second flow line 3, two circulating pumps, which are arranged, can make to follow
The division of labor of ring pumping system is clear, reliable operation.It is also preferable that first flow line 2 of the present embodiment is deeper apart from ground
Position is attached with main borehole 1, and from earth's surface (ground) to depths in the earth's crust, formation temperature is gradually increased with depth, from constant temperature
Layer or less start, depth is every to increase by 100 meters, and formation temperature averagely rises 3 DEG C, thus the formation temperature apart from ground higher depth compared with
Height, is attached the thermal energy that can use stratum in higher depth, improves the temperature of circulation fluid in the first flow line 2, when will be warm
It spends after lower circulation fluid is input in the first flow line 2, the circulation fluid after heat exchange heats is defeated upwards by main borehole 1
Out, thus make the present embodiment system realize heating function, when walking in main borehole 1, circulation fluid can further with stratum
Heat exchange occurs, the temperature of itself is further promoted, so that heating effect is more preferable.Second flow line 3 of the present embodiment is then
It is being connect apart from the shallower position in ground with main borehole 1, temperature on stratum is lower at this, inputs when by the higher circulation fluid of temperature
When into the second flow line 3, the circulation fluid of higher temperature carries out heat exchange cooling with stratum, and the circulation fluid after cooling is from second
Output enters in main borehole 1 in flow line 3, is exported upwards by main borehole 1, supplies so that the system of the present embodiment be made to realize
Cold energy.The cold-heat exchange system of the present embodiment is not only able to heat, and can cooling supply, heating cooling supply do not consume energy, it is vdiverse in function,
Geothermal energy is taken full advantage of, it is environmentally protective, also, first flow line of cold-heat exchange system 2 of the present embodiment and the second flowing
Pipeline 3 is connect with main borehole 1, and the circulation fluid in the first flow line 2 and the second flow line 3, which passes through main borehole 1, to carry out
Output, the circulation fluid after heat exchange and the circulation fluid without heat exchange not will do it contact heat-exchanging, and intensity of heat exchange is high, heat transfer effect
Good, the heat exchanger effectiveness of whole system is higher, practical.More specifically, first flow line 2 and main borehole of the present embodiment
1 connecting pin 2000m or 2000m or less located underground locates, and is more preferably 2000m, which enables to the temperature using end 7
Degree reaches 60 DEG C or more, can meet heating demands well, at the same time, the connecting pin of the second flow line 3 and main borehole 1
It is more preferably 300m at the position 300m or 300m or more located underground, which enables to maintain using the temperature at end
20 DEG C hereinafter, can meet heating demands well.
Further, first flow line 2 of the present embodiment include first level pipeline 21 and with first level pipeline 21
First vertical duct 22 of connection, the first vertical duct 22 are connect with main line 4, first level pipeline 21 and main borehole 1
Connection, the first flow line 2 are not only able to exchange heat in the first vertical duct 22 with stratum, additionally it is possible in first level pipeline
21 are sufficiently exchanged heat with stratum, and since length is longer on a depth location for first level pipeline 21, thus this is first-class
Dynamic pipeline 2 considerably increases the effective area contacted with stratum and volume, and system heat exchanger effectiveness is high, and sufficiently, exchange heat effect for heat exchange
Fruit is very good, can sufficiently increase the temperature of circulation fluid.At the same time, second flow line 3 of the present embodiment includes the second water
Flat pipeline 31 and the second vertical duct 32 connecting with the second horizontal pipeline 31, the second vertical duct 32 connect with main line 4
Connect, the second horizontal pipeline 31 is connect with main borehole 1, the second flow line 3 equally improve the effective area contacted with stratum and
Volume can sufficiently reduce the temperature of circulation fluid.
It is also connected on above-mentioned main borehole 1 connecting tube (not marked in figure), main borehole 1 passes through connecting tube and heat exchanger 8
Connection, the circulation fluid in main borehole 1 is transported in heat exchanger 8 and is exchanged heat.Above-mentioned main line 4 and the first flowing
It is additionally provided with wellhead assembly 9 between pipeline 2, the second flow line 3, to be fixed and seal, i.e. main line 4 and first
It is equipped with wellhead assembly 9 between flow line 2, between main line 4 and the second flow line 3, the wellhead assembly 9 setting exists
On ground, wellhead assembly 9 is fixing sleeve, sealing ring etc., each pipeline is fixed and is sealed, avoid circulation fluid with
Cross-contact occurs for the water in stratum.Meanwhile wellhead assembly 9 also is provided between main borehole 1 and connecting tube.
In actual use, under heating mode, the valve between the second flow line 3 and main line 4 is closed, and pass through
The low circulation fluid of temperature is sent in the first flow line 2 by first circulation pump 5, during circulation fluid flows downward, is constantly passed through
The tube wall of first flow line 2 and stratum carry out heat exchange, absorb Formation heat, at 21 sections of first level pipeline, circulation fluid fills
Divide and absorb Formation heat, reaches design temperature, return to ground from main borehole 1.Reaching heating needs the circulation fluid of temperature on ground
Face carries out heat exchange by heat exchanger 8 and using the recirculated water at end 7, after being heated using the recirculated water at end 7, as building
Deng supplying heat source, can be floor heating circulation water etc. using end 7.
Under cooling mode, the valve between the first flow line 2 and main line 4 is closed, and pass through second circulation pump 6
The high circulation fluid of temperature is sent in the second flow line 3, during circulation fluid flows downward, constantly passes through the second flow line
3 tube wall and stratum carry out heat exchange, discharge heat, in 31 sections of the second horizontal pipeline, circulation fluid sufficiently discharges heat to stratum
In, reach design temperature, returns to ground from main borehole 1.Reaching cooling supply needs the recirculated water of temperature on ground, passes through heat exchanger
8 carry out heat exchange, the cooling supply after being absorbed using the recirculated water heat at end 7, as building etc. with using the recirculated water at end 7
Source.
A kind of more wells of the utility model are connected to closed circulation stratum cold-heat exchange systems, which can be into
Row cooling supply and heating, it is vdiverse in function, geothermal energy is taken full advantage of, it is environmentally protective, and the cold-heat exchange system good effect of heat exchange, it changes
The thermal efficiency is high, practical.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, without creatively designing
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (7)
1. a kind of more wells are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: including using end (7), heat exchanger (8)
With cold cycling pipe network, the use end (7) is exchanged heat by heat exchanger (8) with cold cycling pipe network, and described is cold and hot
Circulation pipe network includes circulating pump system, main line (4), the first flow line (2), the second flow line (3) and main borehole
(1), the circulating pump system passes through the import of main line (4) and the first flow line (2) and the second flow line (3)
End connection, circulation fluid to be transported in the first flow line (2) or the second flow line (3), first flow duct
Opening and closing device, first flow line (2) are equipped between road (2), the second flow line (3) and main line (4)
It is being connect at the different depth position of ground with main borehole (1) respectively with the outlet end of the second flow line (3), the master
The circulating fluid of wellbore (1) outlet end enters in circulating pump system after heat exchanger (8) exchange heat, from main line (4)
The circulation fluid being transported in the first flow line (2) or the second flow line (3) passes through main borehole (1) and is exported.
2. a kind of more wells according to claim 1 are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: described
Circulating pump system include first circulation pump (5) and second circulation pump (6), the described first circulation pump (5) and second circulation pump
(6) it is arranged in parallel, and the outlet end of the first circulation pump (5) and second circulation pump (6) connects with main line (4)
It connects.
3. a kind of more wells according to claim 2 are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: described
The first flow line (2) include first level pipeline (21) and the first vertical duct for being connect with first level pipeline (21)
(22), first vertical duct (22) is connect with main line (4), the first level pipeline (21) and main borehole
(1) it connects.
4. a kind of more wells according to claim 3 are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: described
The second flow line (3) include the second horizontal pipeline (31) and the second vertical duct for being connect with the second horizontal pipeline (31)
(32), second vertical duct (32) is connect with main line (4), second horizontal pipeline (31) and main borehole
(1) it connects.
5. a kind of more wells connection closed circulation stratum cold-heat exchange systems described in any one according to claim 1~4, special
Sign is: the main line (4) and the first flow line (2), the second flow line are additionally provided with wellhead assembly between (3)
(9), to be fixed and seal.
6. a kind of more wells according to claim 1 are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: described
The first flow line (2) and main borehole (1) connecting pin 2000m located underground at.
7. a kind of more wells according to claim 1 are connected to closed circulation stratum cold-heat exchange system, it is characterised in that: described
The second flow line (3) and main borehole (1) connecting pin 300m located underground at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601676.6U CN209054794U (en) | 2018-09-29 | 2018-09-29 | A kind of more well connection closed circulation stratum cold-heat exchange systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601676.6U CN209054794U (en) | 2018-09-29 | 2018-09-29 | A kind of more well connection closed circulation stratum cold-heat exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054794U true CN209054794U (en) | 2019-07-02 |
Family
ID=67049770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821601676.6U Active CN209054794U (en) | 2018-09-29 | 2018-09-29 | A kind of more well connection closed circulation stratum cold-heat exchange systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508866A (en) * | 2022-01-17 | 2022-05-17 | 中国科学院广州能源研究所 | Totally-enclosed large-scale CO of hydrothermal reservoir2Working medium U-shaped heat pipe heating system |
| WO2023019292A1 (en) * | 2021-08-20 | 2023-02-23 | Good Water Energy Ltd | Multi-well geothermal syphoning system |
-
2018
- 2018-09-29 CN CN201821601676.6U patent/CN209054794U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023019292A1 (en) * | 2021-08-20 | 2023-02-23 | Good Water Energy Ltd | Multi-well geothermal syphoning system |
| CN114508866A (en) * | 2022-01-17 | 2022-05-17 | 中国科学院广州能源研究所 | Totally-enclosed large-scale CO of hydrothermal reservoir2Working medium U-shaped heat pipe heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109339849B (en) | A kind of multilevel deep well temperature reduction and terrestrial heat utilization system and technique | |
| CN103453571B (en) | A kind of closed circulation heating system | |
| CN205690487U (en) | A kind of hot dry rock heating installation | |
| CN109340864A (en) | A kind of mid-deep strata and shallow layer geothermal energy combined heat and shallow layer geothermal energy concurrent heating system | |
| CN104713259A (en) | Method and system for extracting heat energy of hot dry rocks | |
| CN209054794U (en) | A kind of more well connection closed circulation stratum cold-heat exchange systems | |
| CN109812998A (en) | A kind of mid-deep strata high efficient heat exchanging geothermal well system | |
| CN107514838A (en) | Mid-deep strata geothermal-source heat pump system | |
| CN209042497U (en) | A kind of more well parallel seal circulation heating cooling supply hot water supply systems of anchor formula | |
| CN106196233A (en) | A kind of medium and deep geothermal energy heating system | |
| CN209706377U (en) | Mid-deep strata high efficient heat exchanging geothermal well system | |
| CN113639304A (en) | Forced convection heat exchange type geothermal water horizontal well single well heat supply system | |
| CN206131498U (en) | Do hot dry rock (EGS) heat pipe and adopt heat facility | |
| CN205561323U (en) | Draw device that utilizes geothermal energy | |
| CN208765297U (en) | A kind of mid-deep strata underground pipe horizontal well heat exchange structure | |
| CN209801840U (en) | Middle-deep geothermal energy enhanced heat taking device | |
| CN209084867U (en) | A kind of mid-deep strata and shallow layer geothermal energy combined heat and shallow layer geothermal energy concurrent heating system | |
| CN213480633U (en) | Hot dry rock heat transfer device | |
| CN207556021U (en) | Mid-deep strata geothermal-source heat pump system | |
| CN204830951U (en) | Reinforce deep rock stratum heat transfer system in underground of heat transfer | |
| CN209263397U (en) | A kind of mid-deep strata geothermal well takes heat not fetch water type high-performance heat exchanger | |
| CN206361777U (en) | A kind of deep geothermal heat energy hot dry rock direct supply type heating installation | |
| CN208349385U (en) | Hot dry rock heat pipe hot pump heating system | |
| CN207006633U (en) | A kind of refrigerating plant based on deep geothermal heat well heating system | |
| CN218764043U (en) | Closed-loop heat pipe type underground heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |